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Changing SD card configuration pins doesn't work on nrf52832

Hi, I am a beginner and trying to understand the SD card example for nrf52 DK. When I change the pins from the given configuration

#define SDC_CS_PIN ARDUINO_10_PIN
#define SDC_MOSI_PIN ARDUINO_11_PIN
#define SDC_SCK_PIN ARDUINO_13_PIN
#define SDC_MISO_PIN ARDUINO_12_PIN

to the following:

#define SDC_CS_PIN 19 #define SDC_MOSI_PIN 17 #define SDC_SCK_PIN 10 #define SDC_MISO_PIN 9

The example doesn't work and get stuck in for loop of disk_initialize(0) in fatfs_example() function. I have also tried to update the pin values in pca10040.h but it still doesn't work. Please help. Thanks!

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